Marking out fabric



A. ROTHENBORG MARKING OUT FABRIC Nov. 25, 1952 4 Sheets-Sheet 1 FiledSept. 20, 1946 INVENTOR.

m WW6 A. ROTHENBORG MARKEING OUT FABRIC Nov. 25, 1952 Filed Sept. 20,1946 I 4 Sheets-Sheet 2 INVENTOR Nov. 25, 1952 A. ROTHENBQRG MARKING OUTFABRIC 4 Sheets-Sheet 3 Filed Sept. 20, 1946 V INVENTOR.

M WM m Nov. 25, 1952 A. RoT'HENBRG MARKING OUT FABRIC 4 Sheets-Sheet 4Filed Sept. 20, 1946 a w X? 47 K Patented Nov. 25, 1952 UNITED STATESPATENT OFFICE MARKING OUT FABRIC Aage Rothenborg, Copenhagen, DenmarkApplication September 20, 1946, Serial No. 698,271

12 Claims. 1

This invention relates to a method and drill for marking fabric, andmore particularly for marking a pile of many layers of cloth by drillingsmall holes through the cloth and simultaneously applying color at theedges of the drill holes, and the object of the invention is to providea method in which the drilling and simultaneously the application ofcolor can be obtained rapidly and with security.

A further object of the invention is to provide a device for drillingholes and simultaneously applying color which is simple in constructionand reliable inoperation.

Still a further object of the invention is to provide an improvedmarking drill adapted to use powder or chalk, in which a uniform supplyof powder or chalk can be fed to a pile of cloth. A special object inthis connection is to provide a marking drill in which the powder is fedforward Without damage or clogging in the feed channel.

Further objects and advantages according to the invention will appearfrom the following specification and the appended claims.

Reference will now be had to the accompanying drawing, in which Figure 1is a sectional elevation of a machine in accordance with the invention,

Figure 2 is a vertical section taken on line 2-2 in Fig. 1,

Figure 3 is a side elevation of one end of the machine showing aspecialstarting device,

Figure 4 is a sectional view showing another form of the startingdevice, and

Figure 5 is an elevation showing on an enlarged scale the tip of theneedle and a small portion of the receptacle for the pigment.

In the drawing, I is a base plate forming a support for the textiles tobe marked out.- A bracket 2 is secured to the base plate near one endthereof and extends over the base plate from one end thereof adjacent toand above the opposed end thereof. A vertical hollow shaft 3 is mountedin ball-bearings 4 and 5 at the free end of the bracket 2 and has a beltpulley I secured thereto as by means of a set-screw 6, Fig. 2. Anelectric motor 8 having a belt pulley 9 is mounted on the base plate I'-within the foot of the bracket 2, and is connected with the belt pulleyI by means of a. driving belt I0 which, in the form shown, runs overguiding r idler pulleys I I.

A spindle I2 is slidable axially, in the hollow shaft 3, and is heldagainst rotation relatively to the shaft'3 by a keyway I3 which isengaged by a key disposed within the shaft 3 so as to prevent relativerotation of the spindle and the shaft but permitting a relative slidingmovement thereof. The spindle I2 carries near its lower end aball-bearing I5, the outer ring of which is slidably guided in a tube Itextending in a vertical downward direction from the arm 2. Two laterallyextending pins I! are secured to the outer ring of the ball-bearing I5.The pins I 'I engage vertical slots I8 in the tube I 6 and are connectedwith a yoke-shaped portion I9 of a hand-lever mounted for verticalpivoting movement on the bracket 2. To permit the lever portion I9 tfollow the linear movement of the pins I! which, as stated above, areguided in the slots I8, the pivot 2| of the lever 20 is mounted forsubstantially horizontal sliding movement in slots 22 in the bracket 2.A needle 23 is screwed into the lower end of the spindle I2 in axialalignment therewith, thus mounted for vertical sliding movementrelatively to the base plate I.

Another tube 24 telescoping on the tube It is provided with verticalslots 25 through which the pins I! extend and by means of which saidtube 24 is supported upon said pins in inoperative position shown in thedrawing. The tube 24 is at its lower end provided with an end plate 26,and between this end plate and the outer ring of the ball-bearing I5 ahelical compression spring 2'! is inserted. The end plate 26 is providedwith an aperture 21a through which the needle 23 extends. A casing 28 isby means of a screw-threaded socket 29 screwed to the lower end of thetube 24 in axial alignment therewith. The casing is provided with a topplate 30 having an aperture through which the needle 23 extends. Anotheraperture for the needle is provided at the bottom of the casing. Thisaperture forms a sliding or running fit with the needle 23 so that thelatter will close the aperture. As shown in the drawing, th length ofthe needle 23 is such that the lower end of the needle will just closethe bottom aperture of the receptacle 28 in the inoperative positionshown in the drawing.

The casing 28 encloses a chamber adapted to receive apulverulentpigment, which preferably consists of a dry powder or chalkand which is intended to be introduced into the textiles to be markedout by means of the needle 23.

In use a plurality of layers of textiles to be marked out are supportedon the base plate I, if desired together with a templet, according towhich the marking out is to be efiected. After the motor 8 has beenstarted, the hand-lever I9,

3 2B is manually depressed, whereby the needle 23 as well as the tube 24with the casing 28 secured thereto are lowered towards the textileswhile the needle rotates.

When the bottom of the casing 28 engages the upper textile layer, thecasing and the tube 24 are stopped. The spindle l2 with the needle 23are however urged further downwards by means of the hand-lever I9, 23and against the action of the spring 21 so that the needle 23 penetratesthe several layers of textiles. As shown in Fig. 5, the needle isprovided with a helical surface groove through which the pigmentcontained in the receptacle 28 can flow along the needle and disposeitself on the textile around the holes made by means of the needle.

The direction of the helical groove 3| is chosen in such a mannerrelative to the direction of rotation of the shaft 3 and the needle 23that the groove tends to expel the pigment from the receptacle 28through the bottom aperture thereof somewhat in the manner of a screwconveyor. As indicated by an arrow 32 in Fig. 5, it is assumed that theshaft 3 rotates in a clockwise direction as seen from above. Inaccordance herewith the groove 31 extends in a counterclockwisedirection as shown in Fig. 5. Hereby suflicient pigment is fed from thechamber through the groove of the neeedle to all of the layers oftextile supported on the base plate I.

In order to prevent the tip of the needle 23 from being damaged throughcontact with the base plate I, the latter is provided with an aperture33 situated in axial alignment with the needle 23. A small receptacle 35is provided immediately below the aperture 33 for receiving excessivepigment, if any. Downward movement of the needle 23 is limited by thepin l'i abutting against the lower end of the slots iii of the tube Itso as to ensure penetration of the lowermost i layer of textile by theneedle but preventing the needle from making contact with the bottom ofthe receptacle 34.

When used for marking out large pieces of textile, the machine mayconveniently be portable so that it can be moved along the textile asthe marking out proceeds. To this end, the base plate 1 is preferablyrelatively thin and bevelled at its edges as shown in Figs. 1 and 2 sothat it can easily be introduced under a pile of textiles disposed upona table. In order to facilitate introduction of the base plate under thetextiles the base plate is provided with small rollers 35.

In Fig. 3, a small push-button switch 36 is secured to the casing 23 andhas its push-button 3'! extending vertically a small distance below thelevel of the bottom of the casing 28. The switch 35 is connected withthe motor 3 by means of a cable 38. When the casing 23 and the needle 23are lowered towards the upper side of a pile of textiles by means of thelever I9, 20, the pushbutton 31 will engage the upper side of the pileso as to be actuated during further downward movement of the casing 28.The switch 36 will thereby close the circuit of the motor 8 so as tostart the same. When the push-button is again disengaged from thetextiles the motor stops.

In the form shown in Fig. 4, a push-button switch 39 is secured to thelever I9, 20, and its push-button it) is adapted to co-operate with onearm of a two-armed lever ll mounted in the yoke I9 and carrying a roller42 on its other arm. The lever 4| is carried by a torsional spring d3which tends to urge the lever 41 to press the push-button but isprevented therefrom by the roller 52 engaging the shoulder on the tubeIt. When the lever I9, 20 is manually depressed against the action of aspring (not shown) the roller 42 will be disengaged from the shoulder ofthe tube I6 so as to permit the torsional spring 43 to actuate thepush-button 40 so as to close the circuit of the driving motor of themachine.

The invention is not limited to the specific embodiments described andshown in the drawing, which may be varied and modified in severalrespects within the scope of the appended claims.

I claim:

1. A marking drill device of the character described comprising a baseplate, a bracket extending over said base plate, a displaceable tube atthe end of said bracket, 2. color chamber carried by the lower end ofsaid tube, an opening in the bottom of said color chamber, a needlehaving a helical groove along it surface slidably arranged within saidtube so as to extend through said bottom opening, means for rotatingsaid needle in a direction opposite to the winding direction of saidhelical groove, and means including a handle for longitudinaldisplacement of said tube to cause said color chamber to engage theupper layer of a pile of cloth arranged upon said base plate and forfurther displacing said needle through the opening in said color chamberthrough the layers of cloth after engagement of said color chamber withsaid upper layer.

2. A marking drill device of the character described comprising a baseplate, a bracket extending over said base plate, a displaceable tube atthe end of said bracket, a color chamber carried by the lower end ofsaid tube, a needle having a helical groove along its surface arrangedwithin said tube and extending through an opening in the bottom of saidcolor chamber, a spring connection between said needle and said tube fornormally holding said tube and color chamber extended, means forrotating said needle in opposite direction to the winding direction ofsaid helical groove, and a handle for moving said tube to cause saidcolor chamber to engage the upper layer of a pile of cloth arranged uponsaid base plate,

and for th reafter displacing said needle through the opening in saidcolor chamber and through the layers of cloth against the resistanceoffered by said spring connection.

3. The process of marking out fabric comprising rotating a substantiallycylindrical needle having a helical groove along its surface in theopposite direction of the winding of the groove seen from the top,forcing the needle into said cloth during the rotation of the same forpenetrating super-imposed layers of fabric, and feeding powder to saidgroove at a point substantially at the top layer of the layers offabric.

4. A method of marking cloth arranged in a plurality of superimposedlayers, by means of a rotary needle having a helical groove on the outersurface thereof, which comprises feeding color to said groove, forcingsaid needle into said cloth, and rotating said needle in a direction tocause said grooved needle to act as a screw conveyor to convey color tosaid layers.

5. In powder marking apparatus, a substantially cylindrical drill havinga, helical groove along its surface, means for rotating said drill in adirection opposite to the direction of the winding of said groove asseen from the top, and means for feeding colored powder to said groove.

6. The method of marking out fabric comprising rotating a needle havinga helical groove in opposite direction of the winding of said grooveseen from the top, with part of said grooved needle in a powder supplyand another part of said grooved needle penetrating a stack of layers offabric thereby screwing out said powder from said supply through saidlayers.

7. In a marking drill, a substantially cylindrical needle having ahelical groove along its cylindric surface, means for rotating saidneedle in a direction opposite to the winding direction of said helicalgroove, means for feeding colored powder to said helical groove, andmeans for displacing said needle in longitudinal direction.

8. In fabric marking apparatus, a support, a casing enclosing a chambermounted for movement relatively to said support, a needle mounted tomove through said chamber and having a helical groove, means for movingsaid chamber relatively to said support toward and from the fabric to bemarked, means for moving said needle relatively to said chamber and tosaid support, and means for rotating said needle in the oppositedirection of the winding of said helical groove as seen from the top.

9. In fabric marking apparatus, a support for the fabric to be marked, acasing enclosing a chamber mounted for vertical sliding movementrelatively to said support, manually operated means for moving saidcasing, an aperture in the bottom of said casing, a spring elevatedneedle positioned for vertical movement through said chamber andextending into said aperture in said casing, said needle being formedwith a helical groove, means responsive to a resistance against themovement of said chamber to transmit the movement to said needle throughsaid aperture, and means for rotating said needle opposite the windingdirection of said helical groove, as seen from the top, whereby saidgroove conveys color from said chamber to the several layers of saidfabric.

10. In fabric marking apparatus, a support for the fabric to be marked,a casing enclosing a chamber mounted for vertical sliding movementrelatively to said support, manually operated H means for moving saidcasing, an aperture in the bottom of said casing, a spring elevatedneedle positioned for vertical movement through said chamber andextending into said aperture in said casing, said needle being formedwith a helical groove, means responsive to a resistance against themovement of said chamber to transmit the movement to said needle throughsaid aperture, means for rotating said needle opposite the windmgdirection of said helical groove, as seen from the top, whereby saidgroove conveys color from said chamber to the several layers of saidfabric, and means responsive to said resistance against the movement ofsaid chamber to energize the means to rotate said needle.

11. In fabric marking apparatus, a support for the fabric to be marked,a casing enclosing a chamber mounted for vertical sliding movementrelatively to said support, manually operated means for moving saidcasing, an aperture in the bottom of said casing. a spring elevatedneedle positioned for vertical movement through said chamber andextending into said aperture in said casing, said needle being formedwith a helical groove, means responsive to a resistance against themovement of said chamber to transmit the movement to said needle throughsaid aperture, an electrical motor for rotating said needle opposite thewinding direction of said helical groove, as seen from the top, wherebysaid groove conveys color from said chamber to the "several layers ofsaid fabric, and switch means responsive to the movement of saidmanually operated means to energize said motor.

12. In a fabric marking apparatus, a chamber for a mass of coloredpowder and havingan opening, a needle mounted to move through saidchamber and having a helical groove, means for rotating said needle inthe opposite direction of the winding of said helical groove as seenfrom the top, and means for moving said needle in axial direction to aposition extending through REFERENCES CITED The following references areof record in the file of this patent:

UNITED STATES PATENTS Number Name Date 249,883 Boynton Nov. 22, 1881435,969 Heinz g Sept. 9, 1890 797,087 Thompson Aug. 15, 1905 847,578Hudson Mar. 19, 1907 886,551 Thomas May 5, 1908 999,824 Campbell Aug. 8,1911 1,156,580 Benjamin Oct. 12, 1915 1,667,952 Schulze May 1, 19281,771,399 Christophel July 29, 1930 1,841,139 Muller Jan. 12, 19321,866,682 Temmen July 12, 1932 2,008,031 Miltner July 16, 1935-2,118,718 White May 24, 1938 2,135,228 Wolka-n Nov. 1, 1938 2,199,822Hill May 7, 1940 2,227,254 Glassberg Dec. 31, 940 2,347,333 PhillipsApril 25, 1944

